Croquet by the beach? Why not? Welcome to Hana's version of the town plaza, a bayside park where children splash in the surf, picnickers enjoy the view from the rocky black-sand beach and musicians strum their ukuleles. And others play croquet. When water conditions are very calm, snorkeling and diving are good out past the pier. Currents can be strong, and snorkelers shouldn’t venture beyond the headland. Surfers head to Waikoloa Beach at the northern end of the bay.